Title:
BIDIRECTIONAL AC SWITCH
Document Type and Number:
WIPO Patent Application WO/2016/072417
Kind Code:
A1
Abstract:
A bidirectional AC switch (100) is configured such that cells (110ij) are connected in m series × n parallel connections, each of the cells being provided with a SiC-MOSFET Q1ij with a gate G1ij, a source S1ij, and a drain D1ij, a SiC-MOSFET Q2ij with a gate G2ij and a source S2ij short-circuited to G1ij and S1ij, and with a drain D2ij, and a gate drive circuit (13ij) for applying gate voltage to the gates G1ij, G2ij short-circuited to each other. Currents flowing through a channel part of Q1ij and a body diode BD1ij part of Q1ij when positive voltage is applied to the S1ij side of Q1ij are compared, and a rated current when a current is passed between switch output terminals T1, T2 is set within a current range in which the current flowing through the channel part side is larger. The present invention provides a non-voltage contact bidirectional AC switch which has excellent linearity of voltage-current characteristic, and is compact, inexpensive, long-life, high-withstand-voltage, large-current-capacity, and capable of high-speed response.
Inventors:
OTAKE HIROTAKA (JP)
YANAGI TATSUYA (JP)
KOKUBO YUJI (JP)
HIRAI ATSUHIKO (JP)
YANAGI TATSUYA (JP)
KOKUBO YUJI (JP)
HIRAI ATSUHIKO (JP)
Application Number:
PCT/JP2015/081031
Publication Date:
May 12, 2016
Filing Date:
November 04, 2015
Export Citation:
Assignee:
ROHM CO LTD (JP)
KYOTO NEUTRONICS CO LTD (JP)
KYOTO NEUTRONICS CO LTD (JP)
International Classes:
H03K17/687
Foreign References:
| JP2007135081A | 2007-05-31 | |||
| JP2008153748A | 2008-07-03 | |||
| JP2010172067A | 2010-08-05 | |||
| JP2015162845A | 2015-09-07 |
Attorney, Agent or Firm:
MIYOSHI, Hidekazu et al. (JP)
Hidekazu Miyoshi (JP)
Hidekazu Miyoshi (JP)
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